v/vlib/os/cmdline/cmdline.v

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module cmdline
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// Fetch multiple option by param, e.g.
// args: ['v', '-d', 'aa', '-d', 'bb', '-d', 'cc']
// param: '-d'
// ret: ['aa', 'bb', 'cc']
pub fn options(args []string, param string) []string {
mut flags := []string{}
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for i, v in args {
if v == param {
if i + 1 < args.len {
flags << args[i + 1]
}
}
}
return flags
}
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// Fetch option by param, e.g.
// args: ['v', '-d', 'aa']
// param: '-d'
// def: ''
// ret: 'aa'
pub fn option(args []string, param string, def string) string {
mut found := false
for arg in args {
if found {
return arg
}
else if param == arg {
found = true
}
}
return def
}
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// Fetch all options before what params, e.g.
// args: ['-stat', 'test', 'aaa.v']
// what: ['test']
// ret: ['-stat']
pub fn options_before(args []string, what []string) []string {
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mut args_before := []string{}
for a in args {
if a in what {
break
}
args_before << a
}
return args_before
}
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// Fetch all options after what params, e.g.
// args: ['-stat', 'test', 'aaa.v']
// what: ['test']
// ret: ['aaa.v']
pub fn options_after(args []string, what []string) []string {
mut found := false
mut args_after := []string{}
for a in args {
if a in what {
found = true
continue
}
if found {
args_after << a
}
}
return args_after
}
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// Fetch all options not start with '-', e.g.
// args: ['-d', 'aa', '--help', 'bb']
// ret: ['aa', 'bb']
pub fn only_non_options(args []string) []string {
return args.filter(!it.starts_with('-'))
}
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// Fetch all options start with '-', e.g.
// args: ['-d', 'aa', '--help', 'bb']
// ret: ['-d', '--help']
pub fn only_options(args []string) []string {
return args.filter(it.starts_with('-'))
}